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186 Foreign Literature and Science. 
interior flame of the blow pipe. It is found in the cavities 
of the sandy crust which covers the middle and eastern part 
of the cone, near the opening formed by the eruption of 
22. 
The family of Copper includes three species, —pyrites, sul. 
phate and muriate. These are found in the cavities of a lava 
formed of pyroxene and amphigene, small laminz of a beau- 
tiful green, which the authors suspect to be analagous to the 
uranite of Cornwall. 
The Iron family is composed of 8 species, viz: sulphuret, 
carburet, oligist, oxidule, green sulphate, red sulphate, mu- 
riate, and permuriate. 
The next family produces sulphate and persulphate of 
manganese, chloruret and perchloruret of the same metal: 
the two last exist only in a state of mixture with other salts. 
The families which follow, present us with Zireon in crystals 
of 4 or 5 millimetres diameter; a sulphate of alumine 5 Oe 
pheline ; topaz in crystals which are referable to the sexbisoc- 
tonal, septemduodecimal, and tredecioctonal varieties ; su 
nia, and petrolium. 
_ the 3d class contains the species not yet arranged, and the 
new substances: such are brieslakite, which lines the cavities 
of the lavas of La Scala and of the current of Obianos, neat 
Pouroles; humboldtilite ; the zurlite of Ramondini; davy- 
me; cavolinite, from the celebrated naturalist Philip Cavoli- 
‘ 
